Electric switch



G. J. MEUER ELECTRIC SWITCH Nov. 29; 1927.

Filed Jne a. 192i IN V EN TOR.

Qca/uae, Mue/v BW ATTORNEY Patented Nov. 29, 1927.

UNIT1=..Dl STATES GEORGE J'. HEUER,

KFG. CO., OF MILWAUKEE, WISCONSIN,

OF MILWAUKEE, WISCONSIN, ASSIGNOR T0 THE CUTLEB-HAIHER A CORPORATION OFWISCONSD.

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-Application med J'une 8,

This invention relates to electric switches. While not limited thereto,the invention is particularl applicable-to rotary switches for concealemounting and has among its 5 objects to provide a simple, eiiicient andcompact switch therefor.

Another object is to provide a rotary switch of the aforesaid characterdesigned to minimize its dimension axially of its rol0 tary element totherebyv adapt the same to relatively at or shallow canopies and theAnother object is to provide a switch of the aforesaid `character having.an operatin l5 member which may be readily remov therefrom forre-nishing, said switch being of such design as to eliminate thenecessity for the usual externalnut for holding the parts inassembledrelation upon removal of S0 the actuatingr member. '1' Another object isto provide aswitch of the character set forth comprising parts which maybe readily manufactured and conveniently assembled.

Other objects and advantages of the invention will hereinafter appear. v

The accompan ing drawing illustrates a preferred embo iment of theinvention which will now be described, so stood that the switchillustrated is susceptible of various modilications without departingfrom the scope of the appended claims.-

In the drawing, f 85 Figure 1 is an enlarged elevational view of thecomplete switch, the same being attached to a support shownY in section;

Fig. 2 is a sectional view of the switch; Fig. `3 .is an interior-*viewthereof; and 40 tis a detail view of-one of the'switch terminals. 1

The switch coinprises stationary contacts,

1 and 2 and va rotary bridging contact 3. The contact 3'is carried on arotary ins-ulating element .4 having four peripheral cams 5 6, 7 and 8whic terminate in abrupt shoulders,"said brldgmg contact 3 comprising astampm r:having contact 'portions 9 and 10 arrange o'n.,the camsurfaces5 and le 7. The stationary contacts 1 and 2 have resilientextensions vto bear uppn the periphery of the rotary member w ereby theyare thinnest material having the strength and rigidity,

it being under- 1921. serial no. 475,852.

snapped into and out of en ement with the contact member 3 in a we l ownmanner upon rotation of element 4.

The stationary contacts which comprise reflexed leaf springs are rivetedto posts 11 and 12 for'support in a coplanar relation with respect tothe element 4 and said posts have terminal extensions 13 and 14respectively which are-also arranged in a coplanar relation` withrespect to element 4 whereby the dimension of the switch axially 'ofsaid element is reduced to a minimum. The terminal extensions arepreferably slotted as shown in Fig. 4 to receive theirrespective-circuit wires and to permit the ex tremities of saidextensions to be bent as shown in dotted lines for clam ing the wireswhich vare-thereafter -preferab y soldered to said extensions. .Theposts 11 and 12 carrying thestationary' contacts are riveted orotherwise secured to an insulating'base 15 preferably of the uisite aninsulating isc 16l bein provided to cover the outer face of the ase. Thebase and disc are provided with registering openings to receive thecircuit. wires 17. .and 18 to be attached to the contacts 1 and 2 andwith registering peripheral notches 19 and 20 for .a purposehereinafterset forth.

The rotary element 4 carrying'the bridging contact is fixed to a spindle21 supported independently of the base 15. The spindle 21 is journaledin and solely supported by a nip with the switch` contacts. The nipple22 whlch is ex- 1e 22 carried by shell 23 forming ase 15 an enclosingcasi-ng for the y medium for the switch and the spindle 21 cover disc,said lugs having their extremities bent to clamp said parts together.Thus- Ihas afthreaded extension 24 projectingbei l,

and carrying an acmatmg l with an insular; 28 and 429t0-`f1t the variouselements are retained in assemf f bled relation without dependence uponinterlocking means en -.the spindle such as has ing openings for As(shown, the switch may he attached to anynde'sired support 30 such as acanopy by progectmg the nipple 22 through said sup port and threadingonto the projecting portion oil the nipple a collar or nut 3l. @n theother the nipple il desired he provided with a plurality ol threadedcollars or nuts to clamp the support therehetween,

.lrs will he understood the switch may he manufactured with short leadstor the contacts to facilitate subsequent installation or the switch mayhe directly connected to its main circuit wires and then enclosed in itscasing.

claim new und hy Letters Patent is:

l. A canopy switch tor concealed mounting, comprising a bridging contactIto loe moved with reference to a given axis, tired contacts tocooperate with said movable contact and located syetrically withreiference to such axis, terminal devices electrically connected withthe respective fixed contacts, an insulating hase to which said terminaldevices are permanently secured, all parts ot said fixed contacts andterminal devices being located substantially within the axial extent ofsaid mcvahle contact, a metallic cover member secured to said insulating hase, and a supporting nipple se- ',cured to said cover memberand through which an actuating part `of said switch extends.

2. A canopy switch for concealed mounting, comprising a rotary switchmechanism having all parts of its stationary contacts and circuitterminals mounted on one side of an insulating disk, anchoring means forsaid contacts and terminals extending through said disk and riveted onthe opposite side of the latter, an enclosing shell for said switch tobe permanently secured to said disk, saidshell having a supportingnipple permanently connected therewith4 through which an actuating partof said switch extends and a second insulating disk secu-red to the'rear of the former disk to cover the parts of said anchoring meansextending through the former disk, saiddisks having registergetherethrough of the nuances lcircuit wires to be connected interiorlytoshellhaving a supporting nipple through which the actuating part ot saidswitch extenda' 4l. An electric switch tor concealed mountu ing,comprising a rotary switch mechanism having all parts ot its stationaryand rotary contacts together with its circuit terminals of substantiallyequal axial dimensions and in a coplanar relation, au insulat ing disksupporting said .stationary contacts and a shell having. a supportingnipple through which the rotary element of said switch extends and inwhich said element is journaled for support independently of said diskand in centered relation with respect thereto, said shell having meanscomprising an inherit tongue tor securing the same to said disk.

5. An electric switch for concealed mounting, comprising a rotary switchmechanism having all of its cooperating contact and terminal parte cisubstantially equal axial dimensions and arranged to limit the switch torotation in a single direction, said switch having an actuating stemprovided with an i actuating member threaded thereon for removal byrotation in an opposite-direction to that required for operation of saidswitch.l an insulating support for the stationary contacts of saidswitch and an enclosing shell for said switch having a supporting nipplewithin which the rotary contact element of said switch is journaled forsupport independently of said first mentioned supportl and through whichsaidactuatin'g stem projects, said shell and insulating support'havingparts/comprising inbent tongues for securing the same together4independently of the switch and serving to retain the parts` of thelatter in cooperative relationship.

In witnesswhereof, I have. hereunto suhscribed my name.

emilion J. MUER.l

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